Results 71 to 80 of about 31,268 (166)

Effects of MHD slow shocks propagating along magnetic flux tubes in a dipole magnetic field [PDF]

Nonlinear Processes in Geophysics, 2002
Variations of the plasma pressure in a magnetic flux tube can produce MHD waves evolving into shocks. In the case of a low plasma beta, plasma pressure pulses in the magnetic flux tube generate MHD slow shocks propagating along the tube.
N. V. Erkaev, V. A. Shaidurov, V. S. Semenov, H. K. Biernat, H. K. Biernat   +4 more
doaj  

Statistical and Numerical Analysis of Conjugate Heat and Momentum Transfer in an Open Cavity With a Thick Wall Using Cu–Water Nanofluid

Engineering Reports, Volume 8, Issue 3, March 2026.
Considered physical model and effect of Nuav(τ = 0.1) for Re and ϕ at τ = 0.1. ABSTRACT Although open cavity configurations are common in modern electronic and solar applications, limited attention has been given to thick‐walled hollow cavity designs, particularly in the context of comprehensive sensitivity analysis.
Murad Hossen, Abul Kalam Azad, Raita Rahman, Maisha Nusrat, Tahiya Hossain, Md Mustafizur Rahman   +5 more
wiley   +1 more source

Phase‐Space Synchronization Driven by Moon‐Magnetosphere Coupling in Gas Giants

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We present a new theoretical framework to describe the rapid and spatially localized loss of energetic particles in planetary radiation belts, focusing on interactions between gas giant magnetospheres and their moons. Observations show that flux depletions—known as microsignatures—often refill on timescales comparable to a single drift period,
Adnane Osmane, Elias Roussos, Peter Kollmann   +2 more
wiley   +1 more source

Linear and nonlinear properties of Rao-dust-Alfv\'en waves in magnetized plasmas

, 2004
The linear and nonlinear properties of the Rao-dust-magnetohydrodynamic (R-D-MHD) waves in a dusty magnetoplasma are studied. By employing the inertialess electron equation of motion, inertial ion equation of motion, Amp\`ere's law, Faraday's law, and ...
I. Kourakis, P. K. Shukla, Shukla P. K.
core   +1 more source

Extending the Wave Telescope Technique to Larger Numbers of Spacecraft Obtaining Robust Spatial Power Spectra

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The wave telescope is an analysis technique for multi‐point spacecraft data that estimates power spectra in reciprocal position space (k $k$‐space). It has been used to reveal the spatial properties of waves and fluctuations in space plasmas. Originally designed as an analysis tool for 4 spacecraft constellations, new multi‐scale missions such
L. Schulz, K.‐H. Glassmeier, L. Turc, F. Plaschke, K. G. Klein, M. Palmroth, O. W. Roberts, Y. Narita   +7 more
wiley   +1 more source

On the Freeze‐In Distance of Solar Wind Fluid Entropy Variability in the Corona

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The strong correlation between solar wind entropy and the frozen‐in ion charge state ratio O7+/O6+ ${\mathrm{O}}^{7+}/{\mathrm{O}}^{6+}$ indicates that entropy variability on timescales of hours or longer is preserved from its solar source. This prompts the question: where in the solar atmosphere does this entropy variability come from, and at
Aidan J. Nakhleh, Nicholeen M. Viall, Susan T. Lepri, Jim M. Raines   +3 more
wiley   +1 more source

Alfvén Wave Heating of Solar Chromosphere Reexamined

The Astrophysical Journal
Models of heating the weakly ionized solar atmosphere by collisional damping of upward-propagating Alfvén waves, calculated under the assumption that only incompressible (intermediate-mode) MHD waves are involved, have predicted heating rates that do not
Vytenis M. Vasyliūnas
doaj   +1 more source

Spatial structure of azimuthally small-scale MHD waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines

Solar-Terrestrial Physics, 2020
We have studied propagation of hydromagnetic (MHD) waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines. Magnetic surfaces are considered to be concentric cylinders, where the cylinder’s radius models the radial ...
Petrashchuk A.V., Klimushkin D.Yu.
doaj   +1 more source

Energy spectrum of turbulent fluctuations in boundary driven reduced magnetohydrodynamics

, 2003
The nonlinear dynamics of a bundle of magnetic flux ropes driven by stationary fluid motions at their endpoints is studied, by performing numerical simulations of the magnetohydrodynamic (MHD) equations.
Daniel O. Gómez, Dmitruk P., Galsgaard K., Grappin R., Gómez D. O., Hendrix D. L., Hendrix D. L., Iroshnikov P. S., Kolmogorov A. N., Mandrini C. H., Matthaeus W. H., Milano L., Pablo Dmitruk, William H. Matthaeus   +13 more
core   +1 more source

Characterizing Ion‐Scale Fluctuations Around Dipolarization Fronts in Earth's Magnetotail

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract In the Earth's magnetotail bursty bulk flows are often associated with dipolarizing magnetic flux bundles. The leading edges of such earthward‐moving flux bundles are called dipolarization fronts (DF). In the present study we investigate the characteristics of ion‐scale oscillations embedded inside DFs, using observations from NASA's ...
M. Hosner, R. Nakamura, D. Schmid, E. V. Panov   +3 more
wiley   +1 more source